<script setup>
import {User, Lock} from '@element-plus/icons-vue'
import {ref, watch} from 'vue'
import {userReg, userLogin} from '@/api/user.js'
import router from '@/router/index.js'
import {useUserStore} from '@/stores'
const userStore = useUserStore()
const isRegister = ref(true)
// 注册相关
const regForm = ref({
  username: '',
  password: '',
  repassword: ''
})
const regRules = {
  username: [
    {required: true, message: '用户名不能为空', trigger: 'blur'},
    {min: 1, max: 10, message: '1-10位大小写字母和数字', trigger: 'blur'},
  ],
  password: [
    {required: true, message: '密码不能为空', trigger: 'blur'},
    {pattern: /^\S{6,15}$/, message: '6-15位非空字符', trigger: 'blur'},
  ],
  repassword: [
    {required: true, message: '确认密码不能为空', trigger: 'blur'},
    {pattern: /^\S{6,15}$/, message: '6-15位非空字符', trigger: 'blur'},
    {
      validator: (rule, value, callback) => {
        if (value && regForm.value.password === value) {
          callback()
        } else {
          callback(new Error('两次密码不一致'))
        }
      }
    }
  ]
}
const form = ref()
const regBtn = async () => {
  await form.value.validate()
  await userReg(regForm.value)
  ElMessage.success('注册成功')
  isRegister.value = false
}
// 切换的时候，重置表单内容
watch(isRegister, () => {
  regForm.value = {
    username: '',
    password: '',
    repassword: ''
  }
})
// 登录相关
const loginBtn = async () => {
  await form.value.validate()
  const res = await userLogin(regForm.value)
  userStore.setToken(res.data.token)
  ElMessage.success('登录成功')
  router.push('/')
}
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!--      注册-->
      <el-form ref="form" :model="regForm" :rules="regRules" size="large" autocomplete="off" v-if="isRegister">
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="regForm.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
              v-model="regForm.password"
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
              v-model="regForm.repassword"
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="regBtn" class="button" type="primary" auto-insert-space>
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!--      登录-->
      <el-form ref="form" :model="regForm" :rules="regRules" size="large" autocomplete="off" v-else>
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input v-model="regForm.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
              v-model="regForm.password"
              name="password"
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox checked>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button @click="loginBtn" class="button" type="primary" auto-insert-space
          >登录
          </el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
    url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>

